SPF, DMARC and CAA generator

Compose the record without a syntax slip.

Record type Domain name Allowed servers / certificate authority Reporting address Strictness

Builds the TXT line to paste into your zone, with the chosen policy and an explanation of each term. Syntax errors in these records fail silently: the mail leaves, it just never arrives.

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Speed test
IP tools
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WHOIS
SSL / TLS certificate
HTTP headers
Response time
Global DNS propagation
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M MesOutilsSimple, fast online tools

No advertising cookies, no third-party trackers. Statistics are counted on our own servers, from a one-way fingerprint of the IP address.

The tools

Speed test
Password generator
QR code generator
IP tools
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WHOIS
Base64
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